Gas mixer for internal-combustion engines



March 25 1924.

K. voLz GAS MIXER FOR INTERNAL COMBUSTION ENGINES Y l Filed June 8. 1921 3 Sheets-Sheet 1 FIG/.4. F|G.2.

FIGA.

5 y e m T A March 25 1924.

K. vLz

GAS MIXER FOR INTERNAL COMBUSTION ENGINES K Fnedauna a, 1921 sheets-sheet 2v Flsge.

,4 T To @NE/3 March 25y 1924.

K. voLz GAS MIXER FOR INTERNAL COMBUSTION ENGINES Filed June a, 1921. s sheets-sheet s FIGMQ FIGJIO.

INVEN'II'PR I Kol/7'?" O' Patented ar. 25, 1924.

tran s'rArEs e L4M? PATENT OFFIQ.

KURT voLz, E HEIDELBERG, GEEMANx. A

GAS MIXER :EOE INTERNAL-consumi@ ENGINES.

Application led June 8, 1921. Serial No. 475,992.

To all whom z't may concern.'

Be it known that I, KURT VoLz, a citizen of the German Republic,residing at Heidelberg, Germany, have invented certain new and useful Improvements in Gas Mixers for Internal-Combustion Engines, of which the chamber and uncovering a row of air holes for the admission of the additional air which are arranged in a circle for instance under the periphery of the atomizer, the ad mission of the primary mixture being controlled by an obturating body in the inner gas supply tube raised together with the atomizer.

The advantage of the invention in comparison with the devices of known construction for the regulation of the air inletwith yscrew wings or piston-like slides consists in the easier and undisturbed Working of the distributor, in the better distribution of the air and in the improved admixing of the gas mixture and the additional air s o that a thorough atomizing is eected.

In order to makethe invention clearly understood, I Ashall proceed to describe the same with reference to several forms of construction shown by way of' examplevin the accompanying drawings, wherein Figs. 1 and 2 are two sections standing perpendicular the one to the other and showing an atomizer of simple construction.

Fig. 1a shows in part section a modified view of the air inlet holes.

Fig. 3 isa corresponding plan View. the cap being removed.

Fig. 4 is a view similar to Fig. 1 of an atomizer with throttling element.

Figs. 5 to ,7 show in longitudinal section, side elevation and planA view respectively an atomizer with lateral conduit for the gaseous mixture. Y

Figs. 8 and 9 illustrate the application ,of the atomizer shown by Figs. 5 7.

Figures 10 and 1'1 show a modiiedgform of construction of the blades of thefatomizer in plan view and cross sectionk respectively.

' The admission of auxilia Referring to Figs. 1-6 the casing consists vof the cup-shaped under part a with lower Vtubular extension and of cap b enlarged at its lower end in the plane of the atomizer and which terminates in a tube and is fixed upon the rpart a with its large end.V In the enlarged hollow space of the casing a, b the rotating atomizer c ish mounted. It rotates lightly upon the axle d between convenient adjustable bearings 6,61. The axle can move up and down in collar bearings g1, g2 `xed rupon a by means of'bow-shaped holders at h1, 71.2, ha. Atl its lowest position, the position of rest, the axle d is held by a spring m whose tension can be regulated by means of nut fn, and counter nut n1. The auxiliary vair flows into the casing through aperturesvll--c'e in the cup-shaped part of socket a, the number of holes being varied according to requirement. The air enters thus into the part of the casing in which the most intense action of the atomizer takes place. An adjusting ring 7c arranged upon the inner wall of the socket over the air inlets i is connected with the axle d' of the 'atomizerby arms Z. Instead of simply covering the inletsi by the `ring vthis ring k 'can engage with conical studs k1 (Fig.`1) in the air holes i so that, if it is being raised, it gives the holes free only gradually. The stronger the suction of the engine becomes, the more will the studs be raised out lof the holes and the more will vthe cross section be enlarged for the passage' of the air, so that a very fine adjusting Vofthe air inflow is ensured. The

tercept drops which should flow back the air rinlets z' are raised above the inner surface of the wall of the casing. A. lixed regulating ring p is arranged upon the outer surface of thej'cup-shaped partv of socket a which is designed to effect a coarse regulation of the air admission according to the seasonor to the kind of fuel which is used. The holes in thisy ring p registerwith the 'air inlets 1 "or not according to the position of the ring.

The ring p is guided by Ymeans of centric slots'vupon screw Vpins y1, y?, ya and it. can befixed' in its position 'by' these'screw pins. air canbeshut oil' .completely by this ring 27 Two peep holes r, r1 are arranged theorie opposite the other in the enlarged exten- Y Y sion?) upon the flatter part of the saine inl such a manner that the' light rays from one Vals peep hole are reflected upon the other peep hole so that the observer can see clearly the mixture which flows through the apparatus. The tubular socket a has a' threaded part s and the cap b has a threaded part t so that they are screwed onl the joining parts of the armature. The socket a and' the cap b are pulled tightly against one another by the screwscc1 to m6 so that the two partscan be easily separated for cleaning and repair. j A throttling ring (5 arranged Vin the tubular part of socket n-(Figsg 4 to 9) is tapered towards the Lipper end sov that, the cross section increases from the lowestthrotytliiig point. A'throttlin'geleinent 'oc fixed to the front part al of the axle of the blade wheel, is located with play inthe throttling ring @so that the passage is' ,more or less throttled according to whether under-pressure or over-pressure exists in the section pipe. The raising and vlowering of the throttlingV body is caused-by the movement of the blade wheel c in vertical direction, this blade 'wheel being raised or lowered according to` whether, owing' to al stronger or weaker suction vin the suction pipe,`said blade wheel vrevolves more slowly or rapidly-so that it is raised more or less against/the action of the spring, the throttling body oa be-`4 ing drawn along. Y j .Y

, The-form of construction shown byE-igs. 59 corresponds with vthat shown in Fig.- 4, the u-pper bearing. g1 of the blade wheel o being however adjustablyrvniounted in the cover b1, the lower bearing g2 being stationary in the part c of the casing. `Within Vthe plane of the vblade wheel, preferably not belowthe same, tubular outlets b2 Lare arranged standing at right angles to they gas inlet so that the current of explosive mixture-is deflected at a right angle overthe blade wheel and forced practically to -flolw obliquely through the blades" whereupon results an extraordinarily good mixing effect. The cover is hollow and-can be connected withV a heating conduit in order :that -prelliininaryheating of the'niixture be effected.

A"fn'f'order---to increase-the mixing elfectof the distributor oratoiniZer--ithe blades gcan have ,apertures c1, the axes Iv---l'Y (Figa 10 and V11) of the same being arranged in .a direction opposite the.v directiony in which the gas flows (arrow c2), Y The lower edges c3 of the bla-des and ofthe holesc?vv are roughened, which can be done Y for-instance b-.v moans of. a. purroolr., thokp-blirr; and which serves to increas e the tearing asunder of the. sas fmXtliIo and @belfort-mation of `eddies' in: the saine-.which is alreadyeifected with the ai-d ofthe edges .of the ring 7c 'and of the air holes z". A specially good mixing action of the blade wheel 0 is thus ensured.

I claiin:-

rotating air inlet and gas mixture regulator for internal combustion engines coniprisingin combination with the suction pipe of the motor being enlarged at a determined part and having air inlet holes in this enlarged part, a blade wheel arranged so that it revolves above said'air inlets, the axle of saidblade Wheel mountedl so that it caninove in vertical direction, an adjusting ring upon said 4air inlets, conical studs downwardly projecting from the lower suf face of ysaid adjusting-ring and engaging with said air inlets, means for connecting said adjusting ring vwithsaidaxle of the blade wheel so'thatl said ring is lifted olf said airinlets according to the movement of said blade' wheel.

V,2..A rotating air inlet l-andg'as` mixture regulator-'for internal combustion engines comprising in combination with ak Vrotating body-raised by`Y` the suction draft of the Y motor against the action of a spring, a casing 'having an enlargement inthe plane of therotating body in which under they outer periphery of saidA rotating body inlet holes for the additional airar'e provided, an adp justing lring operated from the ascending rotating body for closing or opening` said inlet holes, means for connecting said Vadjusting ring with the axle of the rotating body so'that said Aring is liftedoff saidv airinlots aoc/ordinato tho moromonf of. tho rotatv.- ingbody, anda throttling element inthe suctionpipe Aconnectedwith said axle of the rotatingbody' for regulating the inflow ofv explosive l mixture.

37A rotating air inlet and lgas mixture regulator for internal lcombustion engines comprising in combination with" aA rotating bodyY raised by the suction draft ofthe motor against the action of a spring, a casing having an enlargement in theplanepof the-rotating. bodyin vwhich underY theV outer periphery; of said rotating body-inlet; holoS for the fidljtorlelv ail",y oro Provided, on adjustin'gringoperated from the ascending.v

rotating body forv closing orjopening sai inlet holes, ineansgfor1 connectingsaid'vadjust'- ing ring with the axle' r.of the rotating body so that saidring is lifted off said air'iniets -V according to the movementof. the rotating n body, a throttling ring -in the suction pipe below 'sai-d rotating bodyvtaperedtowards the uppeijedge and la` spherical throttlin element in `.said .throttling ring connecte -the axleofpsaid rotating body sothat.l Y

the passage for the inflow ofthe-explosive mlxturosuosiiltod Aao o o,rdilis to the Position of ththrottliig ole-moet oultor 'for internal combustion, er1-eines# o'omrrisin foombinatioli with@L rotating body raised by the suction draft ofV the ing the same in adjusted position and means for indicating the adjusted position of said outer adjusting ring.

In testimony whereof I aiix my signature in presence of two Witnesses.

KURT VOLZ.

Witnesses:

ERNST HEDRISY.

FRAU K. STEINMANN. 

